Circles on Octagonal grid with animated points/segments Unit circle with 8 circles of radius = 0.35 Points on each circle joined to points on other 7 circles The animation speeds of each point are slightly different so the pattern does not repeat for a loooooong time. If you Freeze the animation, you can reposition the points on the circles. This is my GeoGebra version of an animation by Dave Whyte found at: http://beesandbombs.tumblr.com/post/57000210193/ancient-secret-computer-crystal